Curcumin is a diarylheptanoid. It is the principal curcuminoid of the popular South Asian spice turmeric, which is a member of the ginger family (Zingiberaceae). Turmeric's other two curcuminoids aredesmethoxycurcumin and bis-desmethoxycurcumin. The curcuminoids are natural phenols that are responsible for the yellow color of turmeric.
Curcumin can exist in several tautomeric forms, including a 1,3-diketo form and two equivalent enol forms. The enol form is more energetically stable in the solid phase and in solution. Curcumin can be used for boron quantification in the curcumin method. It reacts with boric acid to form a red-color compound,rosocyanine. Curcumin is a bright-yellow color and may be used as a food coloring.
1. Food Coloring
2. Solid beverage
1. Can I get samples?
Surely you can.
Existing Sample is free (but we will charge for custom designs). If you have a discount of your FedEx, UPS, TNT or DHL account, we may ship samples with your account. If not, we may charge the shipping freight for samples and ship them by our discount account. It always takes about 2-4 days for shipping.
2. How long is the Sample lead time?
2-3 days for existing random samples and 5-7 days for samples with customized design after all approval.
3. Do you have products in stock?
Yes, we have a lot in stock, when you order the products in stock, we will pack fast and deliver to you, it will save you a lot of time. Also, we hold promtion regularly, pls pay attention to it.
4. Sample charges
Sample is free, the freight charge is due to the customer.
